Apartment is exactly as advertised, rather small, but I still managed to stay there for 2months during a pandemic and didn't get claustrophobia.
It's very clean and has everything you need. The street in front of the bedroom window can be a bit noisy during daytime, but at night it's okay, I slept perfectly fine.
Pool and gym in the building are very convenient.
The host was very responsive and nice, and helped with everything immediately.
The location is probably one of the best in Bangkok, its a rather secluded area near a small mall, no traffic, very clean and relaxed. 2minute tuktuk ride ( every 15mins for free) or 5min walk over a little bridge to the main road, mall for groceries shopping and some street food located in that area. Bus drives every 15 mins to bts on nut. Walking distance roughly 10mins. The bus is sponsored by the company that owns the area, is reliable, clean and for free, and also not crowded.